From 3a4b7efe7fa8ce3822f6139cddce4bae24c9ffe6 Mon Sep 17 00:00:00 2001 From: Xiangliang Yu Date: Thu, 29 Sep 2011 00:34:55 -0700 Subject: [SCSI] mvsas: expander write performance enhancement with 1 expander, connect 8 HDD, the write performance will be improved by 80%. Signed-off-by: Xiangliang Yu Signed-off-by: James Bottomley --- drivers/scsi/mvsas/mv_defs.h | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/scsi/mvsas/mv_defs.h') diff --git a/drivers/scsi/mvsas/mv_defs.h b/drivers/scsi/mvsas/mv_defs.h index dec7cadb7485..8e21482367d2 100644 --- a/drivers/scsi/mvsas/mv_defs.h +++ b/drivers/scsi/mvsas/mv_defs.h @@ -387,6 +387,7 @@ enum sas_cmd_port_registers { CMD_SL_MODE0 = 0x1BC, /* SL Mode 0 */ CMD_SL_MODE1 = 0x1C0, /* SL Mode 1 */ CMD_PND_FIFO_CTL1 = 0x1C4, /* Pending FIFO Control 1 */ + CMD_PORT_LAYER_TIMER1 = 0x1E0, /* Port Layer Timer 1 */ }; enum mvs_info_flags { -- cgit v1.2.3